WordNet
n. a generator of single or multiple voltage pulses; usually adjustable for pulse rate
Wikipedia
A pulse generator is either an electronic circuit or a piece of electronic test equipment used to generate rectangular pulses. This article describes the test equipment.
Usage examples of "pulse generator".
Torrance and Will think it will need at least four weeks to install a low-intensity beam and pulse generator on Cusp Station, and until those are working there's no point in computing anything.
Second, an electromagnetic pulse generator, with the same area of emission.
Fourth, a gravitational pulse generator like the ones off the Imperial Interdictors.
The quantum torpedo containing the specialized magneton pulse generator was unharmed as well, and ready to be launched into the barrier as soon as he took over the tactical controls.
The control unit was a pulse generator that sent an extremely weak electrical impulse-in fact a thousand times weaker than the current a flashlight bulb requires-through the sleep centers in the thalamus and hypothalamus.
The Televek have weapons of that type as well, and of comparable strength, I believe, but they use a pulse generator.